Answer:
Step-by-step explanation:
72.
1 kilogram was eaten
x = 2
1/2(x + 12) = 4x - 1
1/2x + 12/2 = 4x - 1
1/2x + 6 = 4x - 1
1/2x - 4x = -1 - 6
1/2x - 8/2x = -7
-7/2x = -7
x = -14/-7
y = arctan(8/10)
y = 38.65
y = 39
